refactor to replace hardcoded locales by available locales from dir names
refactor to replace hardcoded locales by available locales from dir names

WEBUMENIA-464

SlovakNationalGallery/web-umenia-2,SlovakNationalGallery/web-umenia-2,SlovakNationalGallery/web-umenia-2,SlovakNationalGallery/web-umenia-2